http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Seasonal Changes of Foliar Nutrient of ‘Hongro’ and ‘Fuji’ Apple Trees Grafted on M.9 Rootstock
Chun Bong Ryu,Sei Myong Oh,Soon-Tae Kwon,Ik-Jo Chun 한국원예학회 2006 Horticulture, Environment, and Biotechnology Vol.47 No.5
This study was performed to examine annual mineral fluctuation of apple trees on M.9 rootstock and to establish the integrated nutrient management for high density apple orchard in Korea. Five-year-old ‘Fuji’ and ‘Hongro’ apple trees grafted on M.9 rootstock were used in the study. Soil analysis of the examined orchard showed that soil mineral contents were not significantly changed after whole fertilization and foliar spray. The patterns of specific leaf weight (SLW) showed that the values of ‘Hongro’ increased after July, but those of ‘Fuji’ were not much changed until October. Moreover, ‘Hongro’ tree had higher SLW than that of ‘Fuji’ tree through the growing season. The N contents of both cultivars were highest in July and August of the year, and also showed 3 and 2.7% in the leaves of ‘Fuji’ and ‘Hongro’, respectively. The results of leaf mineral analysis showed that the leaves of ‘Fuji’ had the highest contents of Ca, Mn, Mg, and B in July and then decreased continuously. The content of K in the leaves of ‘Fuji’ continuously decreased during growing season, while the content of Zn showed sigmoid pattern. ‘Hongro’ showed different mineral fluctuation pattern compared with ‘Fuji’, showing consistent accumulation of Ca, Zn, Mn, and B in the leaves during the growing season.
스핀 스프레이 방식으로 제조된 바륨계 페라이트 박막의 EMI (Electromagnetic Interference) 차폐 특성
오혜령 ( Hye Ryeong Oh ),박연주 ( Yeon-ju Park ),이우성 ( Woo-sung Lee ),유찬세 ( Chan-sei Yoo ),유명재 ( Myong-jae Yoo ),서인태 ( Intae Seo ) 한국전기전자재료학회 2024 전기전자재료학회논문지 Vol.37 No.2
The low-temperature deposition of BaNi<sub>(2-x)</sub>Co<sub>x</sub>Fe<sub>16</sub>O<sub>27</sub> thin films with a Ba hexaferrite structure for electromagnetic shielding was studied. The BaNi<sub>(2-x)</sub>Co<sub>x</sub>Fe<sub>16</sub>O<sub>27</sub> thin films produced through the spin spray process were suitable for thin film deposition on a flexible substrate because it crystallized well at low temperature below 90℃. The change in shielding characteristics depending on the Co content of the BaNi<sub>(2-x)</sub>Co<sub>x</sub>Fe<sub>16</sub>O<sub>27</sub> thin film was investigated, and excellent shielding characteristics with S21 of -1 dB were obtained in a wide frequency range of 26~40 GHz when the Co content was 0.4 or more. The purpose of this study is to analyze changes in shielding properties caused by change in Co content in relation to phase changes in BaNi<sub>(2-x)</sub>Co<sub>x</sub>Fe<sub>16</sub>O<sub>27</sub> and obtain basic data for developing excellent flexible electromagnetic wave shielding materials.